low voltage electrical distribution compact ns

Compact NSCircuit breakers and switch-disconnectorsfrom 630 to 1600 A

Low voltage electrical distribution

User manual10/2017

151201640AA - 10/2017

ContentsDiscovering Compact NS 3Safety information 3Rating plate 4Manually operated Compact NS with a toggle 5Components 5Opening, closing, reset 6Testing the device 7Locking the toggle 8Manually operated Compact NS with a rotary handle 9Components 9Opening, closing, reset 10Testing the device 11Locking the rotary handle 12Locking the switchboard door 14Electrically operated Compact NS 15Components 15Opening and closing the device 16Locking the controls 18Compact NS chassis 20Components 20Matching a device with its chassis 21Racking 22Racking-in the device 23Racking-out the device 24Locking in the "disconnected" position 25Locking the switchboard door 27Locking the device when the door is open 28Locking the safety shutters 29Electrical auxiliaries 30Electrical diagrams 30Operation 36Operating the Compact NS 37Start-up 37Environmental conditions 40What to maintain and why 42Maintaining the Compact NS during operation 48What to do when the circuit breaker trips 53Troubleshooting and solutions 55

User manual for circuit breakersand switch-disconnectorsCompact NS630b-1600 A

Contents

2 51201640AA - 10/2017

351201640AA - 10/2017

Safety information

Important notesRestricted liabilityElectrical equipment should be serviced and maintained by qualified personnel only.No responsibility is assumed by Schneider Electric for any consequence arising out of the use of this manual. This document is not intended as an instruction manual for untrained persons.

Device operationThe user is responsible for checking that the rated characteristics of the device are suitable for its application. The user is responsible for reading and following the device operating and installation instructions before attempting to commission or maintain it. Failure to follow these instructions can affect device operation and constitute a hazard for people and property.

Safety symbols and messagesRead these instructions carefully and look at the equipment to become familiar with the device before trying to install, operate, service or maintain it. The following special messages may appear throughout this bulletin or on the equipment to warn of potential hazards or to call attention to information that clarifies or simplifies a procedure.

Risk of electric shock

ANSI symbol IEC symbol

The addition of either symbol to a "Danger" or "Warning" safety label on a device indicates that an electrical hazard exists, which will result in death or personal injury if the instructions are not followed.

Safety alert

This is the safety alert symbol. It is used to alert you to potential personal injury hazards and prompt you to consult the manual. Obey all safety instructions that follow this symbol in the manual to avoid possible injury or death.

Safety messages

DANGERDANGER indicates an imminently hazardous situation, which, if not avoided, will result in death, serious injury or property damage.

WARNINGWARNING indicates an imminently hazardous situation, which, if not avoided, could result in death, serious injury or property damage.

CAUTIONCAUTION indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury or property damage.

NOTICENOTICE is used to address practices not related to physical injury.

Discovering Compact NS

4 51201640AA - 10/2017

Discovering Compact NSD

B11

8615

pushtotrip

DB

4262

24 Rated current

Suitability for isolation

Performance level

Ui - rated insulation level

Icw - rated short-time withstand current

Ue - rated operational voltageIcu - rated ultimate breaking capacity

Ics - rated service breaking capacityUimp - rated impulse withstand voltage

Type of device:circuit breaker or switch-disconnector

Standard

Rating plate

Note:For further detailed presentation of the Compact NS offer, refer to the Compact NS catalogue (LVPED211021EN).

Rated current

Suitability for isolation

Performance level

Ui - rated insulation level

Icw - rated short-time withstand current

Ue - rated operational voltageIcu - rated ultimate breaking capacity

Ics - rated service breaking capacityUimp - rated impulse withstand voltage

Type of device:circuit breaker or switch-disconnector

Standard

Manually operated device

Electrically operated device

DB

4262

10

DB

4262

25

551201640AA - 10/2017

Manually operated Compact NS with a toggle

DB

1186

19

Components

pushtotrip

Control unit

Spring-charging handleand ON/OFF toggle

"Push to trip" button

Rating plate

MX opening voltage releaseor MN undervoltage release

Device rating

Control auxiliary terminals

OF1 ON/OFF indication contactOF2 ON/OFF indication contactOF3 ON/OFF indication contactSD trip-indication contact

SDE fault-trip indication contact

Padlocking device for thetoggle in the OFF position

Device for padlocking the togglein all positions

6 51201640AA - 10/2017

Local opening and closing

E60

436A

Opening, closing, resetwith a toggle

DB

1186

20push

totrip

ON

OFFpush

totrip

ON

OFF

Remote openingUse either:

b an MX opening release b an MN undervoltage release b a delayed MN undervoltage release.

When connected to the control panel, these releases may be used to remotely open the device.

E71

805A

DB

1187

31

3 6

MNUVR

1012

100/130 V

AC/DC

S

0.5 1

3 1.5

Retardateur de MN

Time delay for UVR

4 5 6

1 2 3

1 2 3

DB

1186

21

MX, MN MN delay unit

Resetting the device following a trip b The device trips.

DB

1186

22

pushtotrip

CLAC !

b Follow the recommendations for what to do when the circuit breaker trips (see page 53).

b Reset the device, then close it again.

DB

1186

23

1push

totrip

reset

1

pushtotrip

ON

2

b OFF: breaker open, ON: breaker closed.


751201640AA - 10/2017

E60

436A

Testing the device

b Close the device.

DB

1186

24

pushtotrip

ON

1


b Press the "Push-to-trip" button.D

B11

8625

pushtotrip

CLAC !

2

b Push the toggle down to reset the device, then back up to close it again.

DB

1186

26

pushtotrip

reset

3

pushtotrip

ON

4

8 51201640AA - 10/2017

Locking the toggle in the OFF position using one to three padlocks (shackle diameter 5 to 8 mm)

Locking the toggleE

6042

5A

DB

1186

27OFFpush

totrip

E60

423A

DB

1186

28

pushtotrip

ON

pushtotrip

OFF

Locking the toggle in the ON or OFF position using one to three padlocks (shackle diameter 5 to 8 mm)


Note: The circuit breaker trips even when locked in the ON position.

951201640AA - 10/2017

ComponentsD

B11

8630

Manually operated Compact NS with a rotary handle

profalux

OF1 ON/OFF indication contactOF2 ON/OFF indication contactOF3 ON/OFF indication contactSD trip-indication contact

SDE fault-trip indicationcontact

Control unit

MX opening voltage releaseor MN undervoltage release

CAO early-break contact

CAF early-make contact

Extended rotary handle

Door lock

Padlocking device

Extended rotary handle

Direct rotary handle

"Push to trip" button

Ratingplate

Keylocks

Padlockingdevice

10 51201640AA - 10/2017


E71

844A

Opening, closing, resetwith a rotary handle

b OFF: breaker open, ON: breaker closed.

DB

1186

31

OFF ON

Remote openingUse one of the following:

b an MX opening release b an MN undervoltage release b a delayed MN undervoltage release.

When connected to the control panel, these releases may be used to remotely open the device.

E71

805A

DB

1187

31

3 6

MNUVR

1012

100/130 V

AC/DC

S

0.5 1

3 1.5

Retardateur de MN

Time delay for UVR

4 5 6

1 2 3

1 2 3

DB

1186

32


Resetting the device following a trip b The device trips.

DB

1186

33

!

1

CLAC !

b Follow the recommendations for what to do when the circuit breaker trips (see page 53).

b Reset the device, then close it again.

DB

1186

34

reset

2

ON

3


1151201640AA - 10/2017


Testing the deviceE

7184

4A b Close the device.

DB

1186

35

ON1

b Press the "Push-to-trip" button.D

B11

8636

!

2

CLAC !

b Turn the handle to reset the device, then back to close it again.

DB

1186

37

reset

3

ON

4

Important: In the case of circuit breaker with direct rotary handle installed through door, the opening of the door is only possible when the rotary handle is in ON or OFF position.

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Locking the rotary handlewith padlocks

Locking the direct or extended rotary handle in all positions using one to three padlocks (shackle diameter 5 to 8 mm)

DB

1186

38

DB

1186

58

b The controls are locked.

OFFON

Note: The rotary handle can be equipped for locking by both padlocks and keylocks.

b Lock the handle.

DB

1186

39 4 5

DB

1187

21

12

3

b Remove the ring as indicated below to enable locking in both the ON and OFF positions.

DB

1186

40

b In the standard configuration, the device may be locked in the OFF position.

OFF



1351201640AA - 10/2017


Locking the rotary handlewith keylocks

Locking the direct rotary handle in all positions using a keylockD

B11

8641

DB

1186

45


DB

1186

42

b Unlock.

profalux

1

DB

1186

43

2

1

2

DB

1186

44E

7181

0A

RONIS

DB

1187

49

PROFALUX

OFFON

b Lock.

Two types of keylocks can be installed


14 51201640AA - 10/2017

tripped

reset

2

3ON

Door locking when the device is in the ON position, using the extended rotary handle

DB

1186

50D

B11

8646

tripped

reset

1

OK

OFF

DB

1186

47

b It is possible, however, to defeat the door lock.

DB

1186

48

DB

1186

49

tripped

reset

4

ON

tripped

reset

5 ON

OK

b The door-lock function may be permanently disabled by removing the lock.

b In the standard configuration, the door cannot be opened when the rotary handle is set to the ON position.


Locking the switchboard door

1551201640AA - 10/2017

Electrically operated Compact NS

ComponentsD

B42

6220

Front

Fixed device

DB

1186

54

RESET

Indicator for positionof the main contacts

Closing spring status indicator

Locking by padlock, lead-seal coveror screws for pushbuttons

Rating plate

Trip indication button usedto reset before closing

Motor mechanism

Charging handle forthe closing order

MX opening vor MN underv

ON button

Operation counter

SDE fault-trip indication contact

Control unit OFF button

Locking in the OFF positionusing a padlock

Locking in the OFF positionusing a keylock and a padlock

Control auxiliary terminals

oltage releaseoltage release

OF ON/OFF indication contacts

SD trip-indication contact

16 51201640AA - 10/2017


Opening and closing the deviceWith the motor mechanism

Device open (OFF), discharged

Device closed (ON), discharged

Device closed (ON), charged and not ready to close

Device open (OFF), charged and ready to close

DB

4262

19

DB

1187

32

DB

1187

33D

B11

8735

DB

1187

34

Push OFFOI

Push ON

Push OFFOI

Push ON

Push OFFOI

Push ON

Push OFFOI

Push ON

DB

1186

56

Remote opening and closing

E71

805A

DB

1187

31

3 6

MNUVR

1012

100/130 V

AC/DC

S

0.5 1

3 1.5

Retardateur de MN

Time delay for UVR

4 5 6

1 2 3

1 2 3


DB

4262

11

Motor mechanism

DB

1186

57 Compact NS is equipped as standard with a motor mechanism, allowing remote opening and closing of the device via opening and closing releases.


The electrically operated device allows local opening and closing via the buttons on the front of the device.

Remote opening optionsAn MX opening release or an MN undervoltage release can be added as an option to provide a second remote opening function. The MN undervoltage release can be delayed by adding a delay unit.

1751201640AA - 10/2017

b The device trips. The button pops out.

DB

4262

17

Manually reset the device following a trip

CLAC !

b Follow the recommendations for what to do when the circuit breaker trips (see page 53)

b Reset the device, then, if necessary, recharge it using the charging handle before closing.

DB

4262

18

DB

4262

22A

DB

1194

98

Push OFFOI

Push ON

or

DB

1186

56

Resetting the deviceWith the motor mechanism


DB

4262

21

18 51201640AA - 10/2017

Push

Locking the controlsDisabling local or remote closing

DB

1187

36


DB

1186

64

DB

1186

65

Locking the device using one to three padlocks (shackle diameter 5 to 8 mm)

Keep the OFF button pressed and pull out the tab.

Install the padlock(s).

IPush ON

Push

DB

1186

63

pushto

trip

DB

1186

66

b Remove the padlocks.

DB

1186

67

pushto

trip

b Push in the tab.

DB

1186

68

b Open the device.


Unlocking the device

Padlocks and keylocks may be used together.

1951201640AA - 10/2017

Push

Locking the device using a keylock and/or one to three padlocks (shackle diameter 5 to 8 mm)D

B11

8669


DB

1187

36

DB

1186

70

Keep the OFF button pressed and turn the key.

Remove the key.

IPush ON

Push

DB

1186

71

Padlocks and keylocks may be used together.Locking using padlocks is identical to the system on the previous page.

DB

1186

66E

7181

0A

RONIS

DB

1187

49

PROFALUX

pushto

trip

b Open the device.

Insert the key. Turn the key.

DB

1186

74

DB

1186

73

DB

1186

75

Push in the tab.

Two types of keylocks can be installed

Locking the controlsDisabling local or remote closing


Unlocking the device

20 51201640AA - 10/2017

Compact NS chassis Components

pushtotrip

Carrying grip

Withdraw grip

Carriage switch terminals

Terminals for control-unitand fault-trip indicationcontacts

Door interlock

Disconnecting-contact cluster

Auxiliary terminal shield

Mismatch protection

Safety shutters

Shutter locking blocks

Locking by keylocks

Racking interlock

Crank

Arc-chute coverControl auxiliary terminals

ON/OFF indication contact terminals

Carriage switch terminals

Locking by padlocks"Connected", "test" or "disconnected" position indicatorCrank socketPosition release button

Crank storage

Side plate forwithdrawabledevice

Manually operateddevice with a toggle

Manually operated devicewith a rotary handle

Electrically operated device

DB

1186

77

2151201640AA - 10/2017

Matching a device with its chassis

To set up a mismatch prevention combination for the device and the chassis, see the mismatch prevention installation manual.

DB

1186

78

The mismatch protection helps to ensure that a device is installed only in a chassis with compatible characteristics.

The possible combinations are listed below.

12

43

5

AB

C

DE

A B CA B DA B EA BA C DA C EA CA D EA DA E

B C DB C EB CB D EB DB EC D EC DC ED E

4 53 53 43 4 52 52 42 4 52 32 3 52 3 4

1 51 41 4 51 31 3 51 3 41 21 2 51 2 41 2 3

Compact NS chassis

22 51201640AA - 10/2017

Compact NS chassis Racking

Open the device (in any case, it opens automatically during connection).

DB

1187

36

Position the device on the rails.Check that it rests on all four supports.

DB

1186

81

Push the device into the chassis, taking care not to push on the control unit.

For complete information on Compact NS handling and mounting, see the installation manual(s).

Before mounting Compact NS, make sure it matches the chassis in terms of rated current and performance level.

If you cannot insert the device in the chassis, check that the mismatch protection on the chassis corresponds to that on the device.

Extending the railsPress the release tabs and pull the rails out.

To put the rails back in, press the release tabs and push the rails in.

DB

1186

80

DB

1186

79

3

1

2

IPush ON

Push

DB

1186

82

DB

1186

83

DB

1186

84

Opush OFF

Ipush ON

discharged

O OFF

Opush OFF

Ipush ON

discharged

O OFF

Opush OFF

Ipush ON

discharged

O OFF

Inserting the device

2351201640AA - 10/2017

Racking-in the device from the "disconnected" to "test" position, then to "connected" position

PrerequisitesTo connect and disconnect the device:

b the crank must be used b all chassis locking functions must be disabled (see

page 25).The chassis locking systems, padlocks and the racking interlock inhibit use of the crank.

E71

815A

b "test" position

E60

414A

Test

b "disconnected" position

E60

415A

Test

b "connected" position

E60

413A

Test

The indicator on the front signals the position of the circuit breaker in the chassis. D

B42

6212

The device is in "disconnected" position.Press the pop-up button and turn the crank.

The device is in "connected" position.

The device is in "test" position.Remove the crank or continue to "connected" position.

Compact NS chassis Racking-in the device

The device is in "test" position.Press the pop-up button and turn the crank.

DB

4262

13

24 51201640AA - 10/2017

Withdrawing the device from the "connected" to "test" position, then to "disconnected" position

DB

4262

14

The device is in "disconnected" position.

The device is in "connected" position.Press the pop-up button and turn the crank.

The device is in "test" position.Remove the crank or continue to "disconnected" position.

Compact NS chassis Racking-out the device

The device is in "test" position.Press the pop-up button and turn the crank.

DB

4262

15

2551201640AA - 10/2017

Compact NS chassis Locking in the "disconnected" positionUsing one to three padlocks

Device in "disconnected" position.

DB

1186

93

Pull out the tab.

DB

1186

95

DB

1186

94

Insert the shackle (diameter 5 to 8 mm) of the padlock(s).

DB

1186

99

DB

1186

96

Combination of locking systems.It is possible to lock the device on the chassis in the "disconnected" position using:

b one to three padlocks b one or two keylocks b a combination of both.

The crank can be inserted.

The crank cannot be inserted.

Locking

Note:If specified when ordering the chassis, this locking function may be adapted to operate in all positions ("connected", "test" and "disconnected"), instead of in "disconnected" position alone. Test

1 2

3 4

3

Use padlocks with a shackle diameter of 5 to 8 millimetres.

Release the tab.

DB

1186

97

DB

1186

98

Remove the padlock(s).

1

2

Unlocking

26 51201640AA - 10/2017

E71

810A

RONIS

DB

1187

49

PROFALUX

E71

812A

CASTELL

Locking in the "disconnected" position Using one or two keylocks

Device in "disconnected" position.

DB

1187

00

Turn the key(s).

DB

1187

02

DB

1187

01

Remove the key(s).

DB

1187

03

The crank cannot be inserted.

Locking

22

Test

1

33

Turn the key(s).Insert the key(s). The crank can be inserted.

DB

1187

04

DB

1187

051 2D

B11

8706 3

Three types of keylocks can be installed

Unlocking

Compact NS chassis

2751201640AA - 10/2017

Locking the switchboard door

DB

1187

10

Turn the crank until the device is in "disconnected" position.

E71

835A

The door is unlocked.

The locking option is installed on the left or right-hand side of the chassis: b when the device is in "connected" or "test" position, the latch is lowered and the

door is locked b when the device is in "disconnected" position, the latch is raised and the door is

unlocked.

DB

1187

07E

7183

1A

DB

1187

08

DB

1187

09

Turn the crank until the device is in "test" or "connected" position.

The door is locked.

Compact NS chassis

Opush OFF

discharged

O OFF

Opush OFF

Ipush ON

O OFF

discharged

O OFF

Opush OFF

Ipush ON

Close the door.Disabling door opening

Enabling door opening

28 51201640AA - 10/2017

Locking the device when the door is open

DB

1187

11

discharged

O OFF

Opush OFF

Ipush ON

When the door is open, the crank cannot be inserted.

When the door is closed, the crank can be inserted.

DB

1187

12

discharged

O OFF

Opush OFF

Ipush ON

DB

1187

13

Compact NS chassis

2951201640AA - 10/2017

Locking the safety shutters

Four locking possibilities inside the chassis using one or two padlocks (shackle diameter 5 to 8 mm) for each shutter

DB

1187

14D

B11

8715

Top and bottom shutters not locked.

Top shutter not locked.Bottom shutter locked.

Top shutter locked.Bottom shutter not locked.

Top and bottom shutters locked.

Compact NS chassis

30 51201640AA - 10/2017

Electrical diagramsFixed devices

Electrical auxiliaries

The diagram is shown with circuits de-energised, all devices open, connected and charged and relays in the normal position.

Power Control unit Remote operation

Power Upstream cb Downstream cb

24 V DC

Q

Micrologic

M6C

M1

M2

T3 F2+

T2

T1/M

3

T4/F

1

VN

Z1 Z2 Z3 Z4 Z5

Z1 Z2 Z3 Z4 Z5 Z1 Z2 Z3 Z4 Z5

Q1

Q2

Q3

L2 L3L1N

DB

1283

78.e

ps

or

AT BPO BPF

MN MX

D2

A2

A4 B4C2

D1 1A1C

Motor-mechanismmodule

DB

1283

73.e

ps

Basic A E P Control unitb b b b E1-E6 communication

b b b Z1-Z5 zone selective interlocking:Z1 = ZSI OUT SOURCEZ2 = ZSI OUT ; Z3 = ZSI IN SOURCEZ4 = ZSI IN ST (short time)Z5 = ZSI IN GF (earth fault)

b b M1 = Vigi module input(Micrologic 7)

b b b T1, T2, T3, T4 = external neutral;b M2, M3 = Vigi module input

(Micrologic 7)b b b F2+, F1– external 24 V DC

power supplyb b VN external voltage connector

(must be connected to the neutral with a 3P circuit breaker)

b M6C : 6 programmable contacts (to be connected to the external module M6C) ext. 24 V DC power supply required

Remote operationMN : undervoltage releaseorMX : voltage release

Motor-mechanism module (*)A4 : electrical opening orderA2 : electrical closing orderB4, A1 : power supply for control devices and motor

mechanism

(*) Spring-charging motor 440/480 V AC(380 V motor + additional resistor)

A1CN2 a - 440/480 V

9 11

B4

R

A2A4

CN1 a - 440/480 V


DB

1283

80.e

ps

A : digital ammeterE : energyP : A + power meter + additional protection.

3151201640AA - 10/2017

Electrical diagramsFixed devices


Indication contacts Terminal block marking (manual operation)

OpenFaultFaultClosed ClosedOpen

OF3

31 21 11 81 91 511

512

524

522

514

534

542

544

92 9432 34 22 24 12 14 82 84 532

521

531

541

OF2 OF1 SDE SD CAF2 CAF1 CAO1CAO2

DB

1283

75.e

ps

Bla

ckB

row

nYe

llow

Whi

te

E6 E5 E4 E3 E2 E1

Z1 Z2 Z3 Z4 Z5M1M2M3

T1 T2 T3F1T4

F2

MN/MX

D2/C2

D1/C1

CAO2CAO1CAF2CAF1

524

522

521

514

512

511

544

542

541

534

532

531

84

SDE

82

81

OF111 12 14

OF221 22 24

OF331 32 34

SD91 92 94

Blu

e

Red

DB

1283

76.e

ps

Indication contacts Terminal block marking (electrical operation)OF3 / OF2 / OF1 : indication contacts

SDE : fault-trip indication contact (short-circuit, overload, earth fault)

SD : trip indication contact (manual operation)

CAF2/CAF1 * : early-make contact (rotary handle)

CAO2 / CAO1 : early-break contact (rotary handle)

E6 E5 E4 E3 E2 E1MN/MX

D2/C2

D1/C1Z1 Z2 Z3 Z4 Z5

M1M2M3T1 T2 T3

F1T4

F2

A1A2A4B4

SDE OF3 OF2 OF1

81

82

84

31

32

34

21

22

24

11

12

14

Bla

ckB

row

nYe

llow

Whi

teB

lue

Red

DB

1283

77.e

ps

* CAF2 option is not compatible with M6C option.

32 51201640AA - 10/2017

Electrical diagramsWithdrawable devices


The diagram is shown with circuits de-energised, all devices open, connected and charged and relays in the normal position.

Power Control unit Remote operation

Power Upstream cb Downstream cb

24 V DC

Q

Micrologic

M6C

M1

M2

T3 F2+

T2

T1/M

3

T4/F

1

VN

Z1 Z2 Z3 Z4 Z5

Z1 Z2 Z3 Z4 Z5 Z1 Z2 Z3 Z4 Z5

Q1

Q2

Q3

L2 L3L1N

DB

1283

78.e

ps

orD

21D

AT

MN

BPO

A2

A4

BPF

1AB

4

MX

C2

1C


DB

1283

79.e

ps

Control unit Remote operationTerminal-block marking Com UC1 UC2 UwC3 M6C / CAF2 MN / MX MT2 MT1

/E5 E6 Z5 M1 M2 M3 F2+ Q3 544 D2 C2 A4 A2

E3 E4 Z3 Z4 T3 T4 VN Q2 542 B4

/E1 E2 Z1 Z2 T1 T2 F1 – Q1 541 D1 C1 A1

Basic A E P Control unitb b b b Com: E1-E6 communication

b b b UC1: Z1-Z5 zone selective interlocking:Z1 = ZSI OUT SOURCEZ2 = ZSI OUT; Z3 ZSI IN SOURCEZ4 = ZSI IN ST (short time)Z5 = ZSI IN GF (earth fault)

b b M1 = Vigi module input(Micrologic 7)

b b b

b

UC2: T1, T2, T3, T4 = external neutral;M2, M3 = Vigi module input (Micrologic 7)

b b b

b

b

UC3: F2+, F1- external 24 V DC power supplyVN external voltage connector (must be connected to the neutral with a 3P circuit breaker)

b M6C: 6 programmable contacts (to beconnected to the external module M6C) ext. 24 V DC power supply required

Remote operationMN : undervoltage releaseorMX : voltage release

Motor mechanism module (*)MT2 : A4 : electrical opening order

MT1 : A2 : electrical closing order B4, A1 : power supply for control devices and motor mechanism

(*) Spring-charging motor 440/480 V AC(380 V motor + additional resistor)

A1CN2 a - 440/480 V

9 11

B4

R

A2A4

CN1 a - 440/480 V


DB

1283

80.e

ps

A : digital ammeterE : energyP : A + power meter + additional protection.

3351201640AA - 10/2017

Electrical diagramsWithdrawable devices


Indication contacts Carriage switches

OF3 OF2 OF1

OpenFaultFaultClosed ClosedOpen

SDE SD CAF2 CAF1 CAO1CAO2

512

524

522

514

534

542

544

92 9432 34 22 24 12 14 82 84 532

31 21 11 81 91 511

521

531

541

DB

1283

81.e

ps

814

822

824

811

821

812

CD2 CD1

DisconnectedDB

1281

50.e

ps

Connected

331

321

311

332

322

312

314

334

324

CE3 CE2 CE1

DB

1283

82.e

ps

Test

911

912

914

CT1

DB

1281

88.e

ps

Indication contacts Carriage switchesM6C / CAF2 CAF1 SDE SD CAO2 CAO1 OF3 OF2 OF1 CD2 CD1 CE3 CE2 CE1 CT1

Q3 544 534 84 94 524 514 34 24 14 824 814 334 324 314 914

Q2 542 532 82 92 522 512 32 22 12 822 812 332 322 312 912

Q1 541 531 81 91 521 511 31 21 11 821 811 331 321 311 911

Indication contacts Carriage switchesOF3 / OF2 / OF1 : indication contacts

SDE : fault-trip indication contact (short-circuit, overload, earth fault)

SD : trip indication contact (manual operation)

CAF2/CAF1 * : early-make contact (rotary handle)

CAO2 / CAO1 : early-break contact (rotary handle)

CD2 : disconnected CD1 position

CE3 : connected CE2 position CE1

CT1 : test position

* CAF2 option is not compatible with M6C option.

Legend Connected

(only one wire per connection point).

34 51201640AA - 10/2017


External sensor (CT) for residual earth-fault protectionConnection of current-transformer secondary circuit for external neutral: Compact equipped with a Micrologic 6 A/E/P:

b shielded cable with 2 twisted pairs b T1 twisted with T2 b maximum length 4 meters b cable cross-sectional area 0.4 to 1.5 mm2 b recommended cable: Belden 9552 or equivalent.

For proper wiring of neutral CT, refer to instruction bulletin 48041-082-03 shipped with it. Do not remove Micrologic factory-installed jumper between T1 and T2 unless neutral CT is connected. If supply is via the top, follow the schematics. If supply is via the bottom, control wiring is identical; for the power wiring, H1 is connected to the source side, H2 to the load side. For four-pole versions, for residual earth-fault protection, the current transformer for the external neutral is not necessary. Connection for signal VN is required only for power measurements (3 Ø, 4 wires, 4CTs).

Shield Drain

DB

4147

26.e

ps

External transformer for source ground return (SGR) earth-fault protectionConnection of the secondary circuit:Compact equipped with a Micrologic 6 A/E/P:

b unshielded cable with 1 twisted pair b maximum length 150 metres b cable cross-sectional area 0.4 to 1.5 mm2

b recommended cable: Belden 9409 or equivalent.

Q

Micrologic 6

PE

X1

X2 814

111012 5 6 7

13

931

H1

H2MiDGF module

M1

M2 T3 F2+

T2T1

/M3

T4/F

1

Z1 Z2 Z3 Z4 Z5DB

1283

87.e

ps

Electrical diagramsEarth-fault protection

3551201640AA - 10/2017

Earth-leakage protection

Connection of the rectangular-sensor secondary circuit:Compact NS equipped with a Micrologic 7 A/P: use the cable shipped with the rectangular sensor.

Micrologic 7

4Z3Z2Z1Z 5Z

I

Q

M1M2

M3

U

M1

M2 T3 F2+

T2T1

/M3

T4/F

1

L2 L3L1N

DB

1283

88.e

ps

Neutral protection

b Three pole circuit breaker: v neutral protection is impossible with Micrologic A/E v with Micrologic P, an external neutral transformer is necessary; the connection diagram is the same as for residual earth-fault protection. b Four pole circuit breaker: v Compact NS equipped with Micrologic A/E/P v the current transformer for external neutral is not necessary.

Zone selective interlocking

Zone-selective interlocking is used to reduce the electrodynamic forces exerted on the installation by shortening the time required to clear faults, while maintaining time discrimination between the various devices.A pilot wire interconnects a number of circuit breakers equipped with Micrologic A/E/P control units, as illustrated in the diagram above.The control unit detecting a fault sends a signal upstream and checks for a signal arriving from downstream. If there is a signal from downstream, the circuit breaker remains closed for the full duration of its tripping delay. If there is no signal from downstream, the circuit breaker opens immediately, regardless of the tripping-delay setting.Fault 1.Only circuit breaker A detects the fault. Because it receives no signal from downstream, it immediately opens in spite of its tripping delay set to 0.3.Fault 2.Circuit breakers A and B detect the fault. Circuit breaker A receives a signal from B and remains closed for the full duration of its tripping delay set to 0.3. Circuit breaker B does not receive a signal from downstream and opens immediately, in spite of its tripping delay set to 0.2.

Wiring b Maximum impedance: 2.7 W / 300 m. b Capacity of connectors: 0.4 to 2.5 mm2. b Wires: single or multicore. b Maximum length: 3000 m. b Limits to device interconnection: v the common ZSI - OUT (Z1) and the output ZSI - OUT (Z2)

can be connected to a maximum of 10 upstream devices v a maximum of 100 downstream devices may be connected

to the common ZSI - IN (Z3) and to an input ZSI - IN CR ( Z4) or GF (Z5).

Downstreamcircuit break

Fault 1

Fault 2

Upstreamcircuit break tsd = 0.3

tsd = 0.2

A

B

DB

1283

89.e

ps

Electrical auxiliaries Electrical diagramsEarth-leakage protectionNeutral protectionZone-selective interocking

36 51201640AA - 10/2017

OperationIndication contactsCarriage switches

The position of the device in the chassis is indicated remotely by the position of the following carriage switches:

b CE: connected position b CT: test position b CD: disconnected position.The device is in the disconnected position when the

minimum isolation distance between the main contacts and the auxiliary contacts is reached.The state of the carriage switches changes according to the device position during racking-in and racking-out operations, as shown in the following diagram.

Indication contacts

DB

4262

16

The ON/OFF indication contacts signal the status of the device main contacts.

Carriage switches


d > 10.9 mm

device in connected position

separation of the main contacts

separation of the auxiliary contacts

test position

completelydisconnected

CE1-4

1-2

1-4

1-2

1-4

1-2

CT

CD

e > 11 mm

open

open open

open

open

open

open

closed

closed

closed closed

closed

closed

closed

d e

Name Contact number

Position of indicators and contacts

Device status – ON OFF Tripped (by Micrologic control unit)

Main contact position – Closed Open Open

Reset button position – IN IN OUT

OF indication contact position

1–2 Open Closed Closed

1–4 Closed Open Open

SDE indication contact position

1–2 Closed Closed Open

1–4 Open Open Closed

3751201640AA - 10/2017

Operating the Compact NS Start-up List of checks and inspections

Insulation and dielectric tests must be repeated immediately after delivery of the switchboard. These tests are precisely defined by international standards and must be directed and carried out by a qualified expert.Prior to running the tests, it is absolutely necessary to:

b disconnect all the electrical auxiliaries of the device (motor mechanism, MX, MN) b remove the long-time rating plug on the Micrologic E/P control units.

Removal of the rating plug disconnects the voltage measurement input.

B: Inspection of the switchboardCheck that the devices are installed:

b in a clean environment,where no waste has been left behind from assembling the equipment (wiring, tools, shavings, metallic particles, etc)

b in a properly ventilated switchboard (unobstructed ventilation grilles).

When starting up new equipment, or following lengthy downtime, a general check takes a few minutes. Such a check helps to remove the risk of a malfunction due to error or oversight.Many malfunctions result from non-observance of the start-up instructions or lack of knowledge concerning the equipment and/or switchgear procedures. Schneider Electric instruction sheets, supplied with products and equipment, contain clear instructions for operators or maintenance personnel on how to correct malfunctions. The PDF files may be downloaded from the www.schneider-electric.com website.Note: A check must be carried out with the entire switchboard de-energised. In switchboards with compartments, only those compartments that may be ac-cessed by the operators must be de-energised.

The table below indicates the checks and inspections to be performed according to the event:

Checks and InspectionsA B C D E F

Prior to start-up b b b b b bPeriodically during operation b b bAfter carrying out work on the switchboard b b b b bPeriodically during lengthy downtime b b bFollowing lengthy downtime b b b bFollowing lengthy downtime and modification to the switchboard

b b b b b b

A Insulation and dielectric strength testsB Inspection of the switchboardC Compliance with the installation diagramD Inspection of mechanical equipmentE Mechanical operationF Check of electronic control units

A: Insulation and dielectric strength testsInsulation and dielectric strength tests are carried out before the switchboard is delivered. These tests are subject to the currently applicable standards.

CAUTIONRISK OF EQUIPMENT DAMAGEOnly a trained specialist is authorized to carry out insulation and dielectric strength tests.Failure to follow these instructions can result in injury or equipment damage.

38 51201640AA - 10/2017

Operating the Compact NS

C: Compliance with the installation diagramCheck that the devices conform with the installation diagram:

b identification of the feeds on the front of each device b rating and breaking capacities (indicated on the rating plate) b identification of the control unit (type, rating) b presence of additional functions (motor mechanism, Vigirex relay, toroid, rotary

handle, control or indication auxiliaries, locking, sealing) b protection settings (long time, short time, instantaneous, ground fault) b Micrologic electronic control unit: visually check the position of the dials or the

main settings and use the maintenance interface to check in detail b identification of the protected circuit marked on the front of each device.

D: Inspection of mechanical equipment b Check the following body parts (see page 43 for more information): v case v arc chute filters v main contacts. b Check the mounting and mechanical strength: v of devices in the switchboard and of power connections v of the following auxiliaries and accessories on the devices

- rotary handles or motor mechanisms - installation accessories (terminal shields, escutcheons, etc.) - auxiliary circuit connections (see page 46 for more information) - chassis and its sliding connections (see page 44 for more information) - terminal blocks - electrical auxiliaries.

b Check the tightening of power connectors and tighten any loose connections (see page 44 for more information).

b Check the arc chute filters (see page 43 for more information).

Start-up List of checks and inspections

3951201640AA - 10/2017

E: Mechanical operation b Check the following mechanical operations: v mechanical opening and closing v electrical opening and closing v tripping with the push-to-trip button v resetting v charging v complete closing of device poles. b Check the number of operating cycles by consulting the operation counter. b Check the locking and unlocking of locking accessories (for example, padlocks

and keylocks). b Check the operation of the motor mechanism (for electrically operated devices)

(see page 46 for more information): v general condition of the motor mechanism v motor mechanism charging time. b Check the operation of control auxiliaries (for electrically operated devices)

including (see page 46 for more information): v MX opening voltage release v MN undervoltage release v MNR delayed undervoltage release. b Check the auxiliary wiring and insulation of all auxiliaries (see page 46 for more

information). b Check the correct operation of the indication contacts OF (see page 46 for more

information). b Check the service life of all auxiliaries.

F: Operation of electronic control units and communication system

b Check the correct operation of the control unit of each device, by using the respective user manual.

b Check the communication module and accessories (optional) (see page 47 for more information).

b Test device control and uploading of contact status. b Test the uploading of the chassis position contacts and address synchronization

between BCM ULP and IO module. b Test data writing to the Micrologic control unit via the communication network.

Operating the Compact NS Start-up List of checks and inspections

40 51201640AA - 10/2017

E60

417A

E60

418A

E60

416A Ambient temperature

Compact NS devices can operate under the following temperature conditions: b the electrical and mechanical characteristics are stipulated for an ambient

temperature of -5 °C to +70 °C b circuit breaker closing is guaranteed down to -35 °C b Compact NS (without the control unit) can be stored in an ambient temperature

of -40 °C to +85 °C b the control unit can be stored in an ambient temperature of -25 °C to +85 °C.

Extreme atmospheric conditionsCompact NS devices have successfully passed the tests defined by the following standards for extreme atmospheric conditions:

b IEC 60068-2-1: dry cold at -55 °C b IEC 60068-2-2: dry heat at +85 °C b IEC 60068-2-30: damp heat (temperature +55 °C, relative humidity 95%) b IEC 60068-2-52 level 2: salt mist.

Compact NS devices can operate in the industrial environments defined by standard IEC 60947-1 (pollution degree up to 3).

It is nonetheless advised to check that the devices are installed in suitably cooled switchboards without excessive dust.

VibrationsCompact NS devices have successfully passed testing in compliance with standard IEC 60068-2-6 and IEC 60068-2-27 for the following vibration levels:

b 2 to 13.2 Hz: amplitude ±1 mm b 13.2 to 100 Hz: constant acceleration 0.7 g.

Vibration testing to these levels is required by merchant marine inspection organisations (such as Veritas and Lloyd’s).

pushtotrip

pushtotrip

pushtotrip

Environmental conditionsOperating the Compact NS

Compact NS630b to 1600Profile ReferenceVibrations, shocks and shakes in operational conditions 3M4 IEC 60721-3-3 compliant

4151201640AA - 10/2017

E60

420A Electromagnetic disturbances

Compact NS devices are protected against: b overvoltages caused by devices that generate electromagnetic disturbances b overvoltages caused by an atmospheric disturbance or by a distribution system

outage (e.g. failure of a lighting system) b devices emitting radio waves (radios, walkie-talkies, radar, etc.) b electrostatic discharges produced by users.

Compact NS devices have successfully passed the electromagnetic compatibility tests (EMC) defined by the following international standards:

b IEC 60947-2, annex F b IEC 60947-2, annex B (control units with earth-leakage function).

The above tests help to guarantee that: b no nuisance tripping occurs b tripping times are respected.

pushtotrip

Environmental conditions

Altitude deratingAltitude does not significantly affect device characteristics up to 2000 m.Above this altitude, it is necessary to take into account the decrease in the dielectric strength and cooling capacity of air.The following table gives the corrections to be applied for altitudes above 2000 m. The breaking capacities remain unchanged.

Compact NS630b to 1600Altitude (m) 2000 3000 4000 5000Impulse withstand voltage Uimp (kV) 8 7.1 6.4 5.6Rated insulation voltage (Ui) 800 710 635 560Maximum rated operational voltage 50/60 Hz (V) 690 690 635 560Rated current 40 °C 1 x In 0.99 x In 0.96 x In 0.94 x InIntermediate values may be obtained by interpolation


pushtotrip

DB

4262

01

42 51201640AA - 10/2017

Operating the Compact NS What to maintain and why Overview

This chapter describes the maintenance that needs to be done on the fixed parts and mechanisms of the Compact NS device and Micrologic control unit, and on accessories, as well as why they need to be maintained.The following topics are described:

b Maintaining body parts (see page 43) b Maintaining connections (see page 44) b Maintaining mechanisms of the device and chassis (for the drawout version) (see

page 45) b Maintaining auxiliary circuits (see page 46) b Maintaining the communication system (see page 47).

DB

1200

69

4351201640AA - 10/2017

Operating the Compact NS What to maintain and why Maintaining body parts

OverviewThe main body parts to be maintained are:

b case b arc chutes and filters b main contacts.

Maintaining the caseThe case of the device provides the following functions:

b functional insulation between adjacent phases and between the phases and the exposed conductive parts for protection against transient overvoltage caused by the distribution system.

b an insulation barrier to prevent users from touching live parts. b protection against the effects of electrical arcs and overpressure caused by

short-circuits.The case also fulfills an operational function by supporting the entire pole operating mechanism as well as the mechanical and electrical accessories of the switch-disconnector.On the case, there should be:

b no traces of grime (grease), no excessive dust, and no condensation which all reduce insulation.

b no signs of burns or cracks which would reduce the mechanical solidity of the case and thus its capacity to withstand short-circuits.The case must be replaced if there are signs of burns or cracks.Preventive maintenance for the case consists of:

b a visual inspection of its general condition b cleaning with a dry cloth or a vacuum cleaner b measuring the case insulation resistance and the resistance of the breaking unit

input/output contact. It is advised to measure the insulation every five years and following trips due to a short-circuit.All cleaning products with solvents are strictly forbidden.

Inspecting the arc chute filtersDuring a short-circuit, the arc chute extinguishes the arc and absorbs the high level of energy along the entire path of the short-circuit. Arc chutes also help to extinguish arcs under rated current conditions.Each time an arc is interrupted by an arc chute, the separator plates of the arc chute are eroded. As the condition of the arc chute deteriorates, it is less effective at clearing short-circuits completely. The device can be damaged or destroyed as a result.Preventive maintenance for the arc chutes consists in regular inspection of the filters, because blocked filters can cause overpressure. The filters can be slightly blackened (due to the gases produced at In). It is recommended to use a vacuum cleaner instead of a cloth to remove dust from the outside of the arc chutes.

DB

4261

99D

B42

6200

PB

1048

37

44 51201640AA - 10/2017

Operating the Compact NS What to maintain and why Maintaining connections

OverviewThis section describes how to maintain the connections of Compact NS devices:

b power connections b sliding connections between the chassis and the device b fixed connections to the equipment.

Power connectionsPower connections between the various distribution systems in a switchboard (busbars, cables) and the switchgear are a major source of heat loss.Incorrect tightening can cause thermal runaway, which in turn can damage the device or cable insulation and can cause a short-circuit and even a fire. Damage can be due to disregard for installation requirements during switchboard assembly.

Sliding connections between chassis and device (for drawout devices)The sliding connections between the chassis and device are made up of two parts: clusters and disconnecting contacts. Grease between the clusters and the disconnecting contacts facilitates the connection and avoids damaging the silver-coated surface by reducing the racking-in friction.The grease breaks down over time and it is therefore necessary to replace it regularly.Preventive maintenance for the sliding connections consists in periodically removing grease and applying new grease in compliance with grease types recommended bySchneider Electric.In sulphurous (corrosive) atmospheres (H2S/SO2), it is necessary to implement the cleaning procedure using Thiourea solution, with mandatory regreasing using the specified fluorinated grease. This type of grease protects the silver and copper-coated contacts against sulphuration, which can cause a build-up of silver or copper sulphide on the contacts. The insulating properties of silver or copper sulphide can increase the resistance of the contact and lead to greater temperature rise.

Fixed connectionsWhen connections using lugs or bars are made in compliance with Schneider Electric instructions (tightening torque, class 8.8 steel hardware and contact washer), no particular maintenance is required.Otherwise, regularly check the temperature-rise points (change in color of copper or tinning), disassemble the connections, clean, and scrape the contact surfaces. Thenreassemble the connections using new hardware. Check the terminals.

WARNINGRISK OF EQUIPMENT DAMAGE AND THERMAL RUNAWAYDo not use a combination of different materials for connections (for example, copper and aluminium).Failure to follow these instructions can result in death, serious injury, or equipment damage.

DB

1281

01P

4270

022A

-28

4551201640AA - 10/2017

Operating the Compact NS What to maintain and why Maintaining mechanisms for device and chassis

OverviewThis section describes how to maintain the moving parts of the chassis and the charging mechanism of Compact NS devices. Operation capability of the device is improved by dusting and general cleaning, proper greasing, and regular opening and closing.The device mechanism is used to open and close the main contacts.The chassis mechanism is used to rack the main body in and out.

DustingIt is recommended to use a vacuum cleaner to remove dust.

CleaningCleaning must be done using a clean and dry cloth or brush. Do not use solvents. Avoid greased parts of the mechanisms, except for grease on electrical contacts.Recommendations for cleaning:

b Non-metallic parts:never use solvent, soap or any other cleaning product. Clean with a dry cloth only.

b Metal parts:clean with a dry cloth whenever possible. If soap or any other cleaning product must be used, make sure that it does not come into contact with non-metallic parts.General recommendations:Never use pressurized cleaning products or products containing solvents (trichloroethane or trichloroethylene) such as WD40.Pressurized cleaning products can cause the following problems:

b removal of grease from inaccessible lubrication points. These areas are greased for the life of the product and cannot be regreased

b corrosion of points that are not regreased b damage caused by the pressure applied by the cleaning product b temperature rise due to the presence of an insulating solvent in the contact zones b elimination of special protection b deterioration of plastic materials.

GreasingDo not use too much grease. When excess grease mixes with dust it can affect the mechanism operation.Greasing must be done after cleaning of some mechanical parts as described in the maintenance procedures. Use only grease recommended by Schneider Electric.

b The main contacts must not be greased. b Under normal operating conditions, the pole-operating mechanism does not need

to be regreased (greased for the life of the product).

Opening and closing cyclesThe need to ensure continuity of service in an installation generally means that power devices are rarely operated. An excessive number of operating cycles accelerates aging and a lack of operation over a long period can result in mechanical malfunctions. Regular operation is required to maintain the normal performance level of all parts involved in the opening and closing cycles.

DB

4262

03D

B42

6204

46 51201640AA - 10/2017

Operating the Compact NS What to maintain and why Maintaining auxiliary circuits

Control auxiliaries (for electrically operated devices)Control auxiliaries include:

b MN and MNR delayed undervoltage releases b MX opening voltage release b XF closing voltage release.

MX opening voltage releases remotely open the device, and XF closing voltage releases remotely close the device, when they receive an electrical order or an order from a supervisor using the communication network.The MN and MNR undervoltage releases are used to open the power circuit if the distribution system voltage drops or fails (in the case of an emergency off application, for example).MX and XF communicating voltage releases and MN and MNR undervoltage releases are continuously connected to the power supply. If the temperature of the device increases, the internal electronic components can accelerate aging.Preventive maintenance consists in periodically checking operation at minimumvalues. It is advised to replace control auxiliaries after 15 years of use to avoid any risk of non-operation when they are needed.

OverviewThis section describes how to maintain the connection system:

b control auxiliaries b auxiliary wiring b indication contacts b Motor mechanism.

Auxiliary wiringAuxiliary wiring is used to transmit the following information:

b orders to the control devices b status condition information.

Incorrect connections or damaged insulation can cause unexpected opening or non-operation of the device. The auxiliary wiring must be regularly inspected and replaced as required, particularly in environments with vibrations, high ambient temperatures, or corrosive atmosphere.

Indication contactsContacts indicate the following information:

b ON/OFF: position of the main contacts (OF) b PF: the device is ready to close.

This information enables a remote operator to respond as necessary. Incorrect indications can result in erroneous device operation.Improper contact performance can be caused by vibrations, corrosion, or abnormal temperature rises.Preventive maintenance consists in regularly checking that contacts conduct or isolate correctly, depending on their position.

Motor mechanisms (for electrically operated devices)The motor mechanism automatically recharges the operating mechanism springs as soon as the device is closed.The motor mechanism makes it possible to close the device immediately after opening. The charging lever serves as a backup if the auxiliary voltage is interrupted.Given the mechanical forces exerted to charge the mechanism, the motor mechanism wears quickly. Periodic checks on the operation of the motor mechanismand the charging time are required to help ensure the device closing function.

0564

21N

A-2

905

6455

NA

-37

DB

4262

05

DB

4262

06

4751201640AA - 10/2017

Operating the Compact NS What to maintain and why Maintaining the communication system

Communication module and accessoriesVia the communication network, the communication module transmits data to a remote site for use by various departments (maintenance, management, production, etc.). A break in the transmission of data can result in:

b production losses due to unawareness of the status of the device b financial losses due to incorrect system management b diagnostic errors.

Periodic checks on the orders (read, write, commands) transmitted by the communication network are required to maintain a high degree of reliability and confidence in the communication system.

0564

61N

A-5

6

48 51201640AA - 10/2017

Operating the Compact NS Maintaining the Compact NS during operationRecommended preventive maintenance and time intervalsOverviewThe electrical switchboard and all its equipment continue to age whether they operate or not. This aging process is due mainly to environmental influences and operating conditions.To ensure that your Compact NS device retains the operating and safety characteristics specified in the catalogue for the whole of its service life, it is recommended that:

b the device is installed in optimum environmental and operating conditions b routine inspections and regular maintenance are carried out by qualified

personnel.

Normal conditionsThe maintenance programme that must be carried out every one, two or five years on Compact NS subassemblies and the level of competence required on the part ofservice agents are described in the tables on page 50 (Level II), page 51 (Level III), and page 52 (Level IV).At the end of each five year period, the maintenance programme must be systematically repeated.These maintenance operations apply for normal operating and environmentconditions as defined below.

Normal operating and environmental conditionsTemperature Average annual temperature < 25 °C outside the switchboard

(Ti (1))Percent load < 80 % of In 24/24 hoursHarmonics Harmonic current per phase < 30 % of InRelative humidity < 70 %

Corrosive atmosphere Device installed in environment category 3C1 or 3C2(IEC 60721-3-3)

Salt environment No salt mistDust Low level

Device installed in a switchboard equipped with filters or aventilated IP54 enclosure

Vibration Permanent vibration < 0.2 g

Beyond the above limits, the device can suffer accelerated aging that may rapidly result in malfunctions. For this reason, periodic checks must be carried out at shorter time intervals. On the other hand, when special efforts are made to improve the operating and environment conditions, preventive maintenance operations can be carried out less often.

Favourable conditions for device installed inside a switchboardThe time interval between two preventive maintenance visits can be doubled if allthe conditions presented below are met.The only exception is the check-up program recommended for the fifth year.

Favourable operating and environmental conditions for device installed inside a switchboardTemperature Average annual temperature < 25 °C outside the switchboard

(Ti (1)). The device is installed in an air-conditioned room or in a ventilated enclosure.

Percent load < 50 % of In 8/24 hours or 24/24 hoursRelative humidity < 50 %

Corrosive atmosphere Device installed in environment category 3C1 or in a closed room that creates favourable conditions (air is conditioned and purified)

Salt environment NoneDust Negligible

Device installed in a switchboard equipped with filters or a ventilated IP54 enclosure

Vibration None

(1) (Ti), see the definition in the Compact NS catalogue (LVPED211021).

Example depending on the conditions: b normal: check on charging time = 2 years b favourable: check on charging time = 2 x 2 = 4 years

0597

68A

-66

4951201640AA - 10/2017

Operating the Compact NS Maintaining the Compact NS during operationRecommended preventive maintenance and time intervalsHarsh conditions and device not installed inside a switchboardThe time interval between two preventive maintenance visits must be reducedby half if any of the conditions presented below are present.

Harsh operating and environmental conditionsTemperature(annual average)

Average annual temperature around the switchboard: 35 °C to 45 °C (Ti (1))

Percent load > 80 % of In 8/24 hours or 24/24 hoursRelative humidity > 80 %

Corrosive atmosphere Device installed in environment category 3C3 or 3C4 without anyparticular protection

Salt environment Installation < 10 kilometers from seaside and device without anyparticular protection

Dust High levelDevice not installed inside an eclosure equipped with filters or a ventilated IP54 enclosure

Vibration Continuous vibrations between 0.2 and 0.5 g

Example depending on the conditions: b normal: check on charging time = every 2 years b harsh: check on charging time = 0.5 x 2 = 1 (every year)

Device check-upDuring the fifth year of operation, it is advised to run a complete check-up on thedevice to determine its status condition.This diagnostic check must be carried out by Schneider Electric Service or by certified personnel having received Level IV training.The complete diagnostic check must be systematically carried out following:

b tripping due to a short-time or instantaneous short-circuit b five trips due to overloads.

See the Level IV program, see page 52.

Check after prolonged storageStorage conditionsDevices must be stored in a dry, ventilated room, protected from rain, water andchemical agents.They must be well protected against dust, rubble, paint, etc. If storage is for an extended period, the relative humidity in the room must be maintained below 70 %.Storage conditions:

b devices without their control unit: -40 °C to +85 °C b devices with their control unit: -25 °C to +85 °C.

Devices must be stored in the open (OFF) position with the charging springs discharged.

Check and maintenanceAfter extended storage and if the conditions above are respected, the checksbelow must be carried out to ensure correction device operation.Storage ≤ 2 yearsRun the Level II and III second year program on the subassemblies below:

b mechanism b device and chassis locking b chassis (optional).

Storage > 2 yearsRun the Level III and IV fifth year diagnostic program on the subassemblies below:

b mechanism b control auxiliaries b device and chassis locking b chassis (optional).

If the devices are stored under harsh conditions (high temperature, corrosiveatmosphere), it is necessary to:

b check the surface condition of the metal parts (zinc) and the copper parts (silver coatings (Ag) or tinning (Sn))

b check the greasing for the device and chassis.

0412

01A

-66

(1) (Ti), see the definition in the Compact NS catalogue (LVPED211021).

50 51201640AA - 10/2017

Maintaining the Compact NS during operationRecommended preventive maintenance and time intervals


Level II (yearly)Minor preventive maintenance operations such as greasing and operating checks,as well as repairs by standard exchange of certain assemblies, carried out bya certified customer employee according to the manufacturer maintenance instructions.

Check Year ToolDevice 1 2 3 4 5(1)

Check the general condition of the device(escutcheon, case, chassis, connections, terminal shields)

b b b b b None

MechanismOpen/close device manually and electrically b b b b b None

Charge device electrically b b b b b None

Check complete closing of device poles b b b b b None

Check number of device operating cycles b b b b b Operation counter

Breaking unitCheck the cleanliness of the filters b b b b b None

Control auxiliaries (electrical operated device)Check auxiliary wiring and insulation b b b b b None

Device lockingOpen and close keylocks installed on device b b b b b None

Open and close padlocking system installed on device

b b b b b None

Chassis (optional)Remove device from chassis and put it back b b b b b None

Check operation of position contacts (CE, CT, CD) b b b b b None

Check operation of safety shutters b b b b b None

Chassis locking (optional)Open and close keylocks installed on chassis b b b b b None

Operate padlocking system b b b b b None

(1) These checks will be carried out by Schneider Electric Services during the diagnostic check every fifth year (see page 52).

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Check Year ToolMechanism 1 2 3 4 5(1)

Check motor mechanism charging time at 0.85 Un b b b Stopwatch + externalpower supply

Check general condition of mechanism b b b Screwdriver

Control auxiliaries (electrical operated device)Check operation of indication contacts(OF / motor mechanism)

b b b Ohmmetre

Check closing operation of control auxiliaryXF at 0.85 Un

b b b External power supply

Check opening operation of control auxiliaryMX at 0.70 Un


Check operation of control auxiliary MN/MNR between 0.35 and 0.70 Un


Check delay of MNR devices at 0.35 and 0.70 Un b b b External power supply

Check MX tripping time b b b Tester

Chassis (optional)Dust and regrease chassis b b b Mobilith

SHC100

Regrease disconnecting-contact clusters (specific case ofcorrosive atmospheres)

b b b Mobilith SHC100

Power connectionsCheck and tighten loose connections Only after a visual

inspection showing overheating marks

Dynamometric crank

(1) These checks will be carried out by Schneider Electric Services during the diagnostic check every fifth year (see page 52).

Level III (every 2 years)General preventive maintenance operations such as general adjustments,troubleshooting and diagnosis of breakdowns, repairs by exchange of componentsor functional parts, minor mechanical repairs, carried out by a qualified customertechnician using the tools and measurement/setting devices specified in themanufacturer maintenance instructions.

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Check Year ToolCase 5 10 15 20 25Measure insulation resistance b b b b b Ohmmeter

Breaking unitMeasure the voltage drop across main contacts for each pole

b b b b b Ohmmeter + injection unit

Control auxiliariesPreventive replacement of control auxiliaries (1)

b None

Micrologic control unitMicrologic replacement (1) b

Check DIN/DINF tripping using performer test tool

b b b b b Performer test kit

Chassis (optional)Check connection/disconnection torque b b b b b Dynamometric

crank

Communication module and accessoriesTest the device control, the uploading of contact status (OF, SD, SDE) operation of optical link, by using the communication network

b b b b b Magicbox + RCU software

Test by using the communication network: b uploading of chassis position contacts b synchronisation of the address between

BCM ULP and IO module b forced replication of the BCM address


Test the writing of data into Micrologic by using the communication network


(1) For critical power applications it is recommended to replace the Micrologic control unit and the control auxiliaries after 10 years. In case of harsh environmental conditions, it may be required to reduce this time: please refer to «Harsh conditions and device not installed inside a switchboard», page 49 of this manual. Schneider Electric will help you to define the most appropriate and adequate maintenance plan specific to you application.

Level IV (every 5 years)All major preventive and corrective maintenance work carried out by the Schneider Electric after-sales support department.

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Operating the Compact NS What to do when the circuit breaker tripsIdentifying the cause

OverviewLocal and remote indication provides information on the probable cause of a trip. In particular, the indications specific to the Micrologic control unit provide a high level of certainty about the cause of the fault (see Micrologic control unit user manuals).There are several types of cause:

b faults on the installation b faults due to a malfunction b intentional tripping.

Note the faultFaults are signalled locally and remotely by the indicators and auxiliary contacts installed on devices (depending on each configuration). See page 36 in this manual and the user manual of the control unit for information on the fault indications available with your device.

Identify the cause of trippingA circuit must never be reclosed (locally or remotely) before the cause of the fault has been identified and cleared.Depending on the type of fault and the criticality of the loads, a number of precautionary measures must be taken, in particular the insulation and dielectric tests on a part of or the entire installation. These checks and test must be directed and carried out by qualified personnel.

Inspect the circuit breaker following a short-circuit b Check the tightness of connections (see the device installation manual). b Check the disconnecting contact clusters.

Reset the deviceThe device can be reset locally. See page 6, page 10 and page 16 in this manual for information on how the device can be reset.

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Operating the Compact NS What to do when the circuit breaker trips

Maintenance of the equipment following trip on faultThe fact that the protection has tripped does not remedy the cause of the fault on the downstream equipment.

CAUTIONRISK OF CLOSING ON ELECTRICAL FAULTDo not close the circuit breaker again without first inspecting and, if necessary, repairing the downstream electrical equipment.Failure to follow these instructions can result in injury or equipment damage.

DANGERHAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

b Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices.

b This equipment must be installed and serviced by qualified electrical personnel. b Disconnect all power sources before performing maintenance inspections. b Assume that all circuits are live until they are completely de-energized, tested,

grounded and tagged. b Consider all sources of power, including the possibility of backfeeding and

control power. b Always use a properly rated voltage sensing device to confirm power is off. b Replace all devices, doors and covers before turning on power to this

equipment.Failure to follow these instructions will result in death or serious injury.

Depending on the type of fault, maintenance inspections must be carried out on all or part of the equipment where the fault occurred (see Start-up, page 37):

b Minor faults: v Tripped by long time protection v Tripped by earth leakage protectionFollowing repairs, checks D, E and F must be carried out.

b Serious or destructive faults: v Tripped due to unknown electrical fault v Tripped by short time protection v Tripped by ground fault protectionFollowing repairs, checks A, B, D, E and F must be carried out. The device that tripped must be specifically checked (see Maintaining the Compact NS During Operation, page 48) before being returned to service.

Note: Checks, tests and inspections must be carried out by qualified personnel. If restarting is a high priority (for example, a safety installation), the defective part of the installation must be isolated and locked in OFF position in order to carry out this maintenance.

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Troubleshooting and solutionsManually operated Compact NS


Problem Probable cause SolutionsDevice cannot be closed locally or remotely b Device padlocked or keylocked in the «open»

position b Disable the locking fonction

b Device not completely connected b Terminate racking in (connection) of the device

b MX opening release permanently supplied with power

b There is an opening order. Determine the origin of the order. The order must be cancelled before the device can be closed

b MN undervoltage release not supplied with power

b There is an opening order. Determine the origin of the order.

b Check the voltage and the supply circuit (U > 0.85 Un). If the problem persists, replace the release

b Permanent trip order in the presence of a Micrologic P control unit with minimum voltage and minimum frequency protection in Trip mode and the control unit powered

b Disable these protection functions on the Micrologic P control unit

Unexpected tripping b MN undervoltage release supply voltage too low b Check the voltage and the supply circuit (U > 0.85 Un)

b Load-shedding order sent to the MX opening release by another device

b Check the overall load on the distribution system b If necessary, modify the settings of devices in the

installation

b Unnecessary opening order from the MX opening release

b Determine the origin of the order

Device cannot be opened remotely,but can be opened locally

b Opening order not executed by the MN undervoltage release

b Drop in voltage insufficient or residual voltage (> 0.35 Un) across the terminals of the undervoltage release. If the problem persists, replace the MN release

Device cannot be opened locally b Operating mechanism malfunction or welded contacts

b Contact a Schneider Electric service centre

Impossible to insert the crank in connected, test ordisconnected position

b A padlock or keylock is present on the chassis or a door interlock is present

b Disable the locking function

Impossible to turn the crank b The reset button has not been pressed b Press the reset button

Device cannot be removed from chassis (optional) b Device not in disconnected position b Turn the crank until the device is in disconnected position and the reset button is out

b The rails are not completely out b Pull the rails all the way out

Device cannot be connected (racked in) (optional) b Chassis/device mismatch protection b Check that the chassis corresponds with the device

b The safety shutters are locked b Remove the lock(s)

b The disconnecting-contact clusters are incorrectly positioned

b Reposition the clusters

b Chassis locked in disconnected position b Disable the chassis locking function

b The device has not been sufficiently inserted in the chassis

b Insert the device completely so that it is engaged in the racking mechanism

Device cannot be locked in disconnected position (optional)

b The device is not in the right position b Check the device position by making sure the reset button is out

b The crank is still in the chassis b Remove the crank and store it

Device cannot be locked in connected, test, or disconnected position

b Check that locking in any position is enabled b Contact a Schneider Electric service centre



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Troubleshooting and solutionsElectrically operated Compact NS


Problem Probable cause SolutionsDevice cannot be closed locally or remotely b Device padlocked or keylocked in the «open»

position b Disable the locking fonction

b Device interlocked mechanically in a source changeover system

b Check the position of the other device in the changeover system

b Modify the situation to release the interlock

b Device not completely connected b Terminate racking in (connection) of the device

b The reset button signalling the fault has not been reset

b Clear the fault b Push the rest button on the front of the device

b Stored energy mechanism not charged b Charge the mechanism manually b If it is equipped with a motor mechanism, check

the supply of power to the motor. If the problem persists, replace the motor mechanism

b MX opening release permanently supplied with power

b There is an opening order. Determine the origin of the order. The order must be cancelled before the device can be closed

b MN undervoltage release not supplied with power

b There is an opening order. Determine the origin of the order.

b Check the voltage and the supply circuit (U > 0.85 Un). If the problem persists, replace the release

b Closing release continuously supplied with power, but device not "ready to close"

b Cut the supply of power to the closing release, then send the closing order again, but only if the device is "ready to close"

b Permanent trip order in the presence of a Micrologic P control unit with minimum voltage and minimum frequency protection in Trip mode and the control unit powered

b Disable these protection functions on the Micrologic P control unit

Device cannot be closed remotely but can be opened locally using the closing pushbutton

b Closing order not executed by the closing release

b Check the voltage and the supply circuit (0.85 - 1.1 Un) If the problem persists, replace the closing release

Unexpected tripping without activation of the reset button signalling a fault trip

b MN undervoltage release supply voltage too low b Check the voltage and the supply circuit (U > 0.85 Un)

b Load-shedding order sent to the MX opening release by another device

b Check the overall load on the distribution system b If necessary, modify the settings of devices in the

installation

b Unnecessary opening order from the MX opening release

b Determine the origin of the order

Unexpected tripping with activation of the rest button signalling a fault trip

b A fault is present: v overload v earth-fault v short-circuit detected by the control unit

b Determine and clear the causes of the fault b Check the condition of the device before putting

it back into service

Instantaneous opening after each attempt to close the device with activation of the reset button signalling a fault trip

b Thermal memory b See the user manual of the control unit b Press the rest button

b Transient overcurrent when closing b Modify the distribution system or the control unit settings

b Check the condition of the device before putting it back into service

b Press the reset button

b Closing on a short-circuit b Clear the fault b Check the condition of the circuit breaker before

putting it back into service b Press the rest button

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Problem Probable cause SolutionsDevice cannot be opened remotely,but can be opened locally

b Opening order not executed by the MX opening release

b Check the voltage and the supply circuit (0.7 - 1.1 Un) If the problem persists, replace the MX release

b Opening order not executed by the MN undervoltage release

b Drop in voltage insufficient or residual voltage (> 0.35 Un) across the terminals of the undervoltage release. If the problem persists, replace the MN release

Device cannot be opened locally b Operating mechanism malfunction or welded contacts

b Contact a Schneider Electric service centre

Device can be reset locally but not remotely b Insufficient supply voltage for the motor mechanism

b Check the voltage and the supply circuit (0.7 - 1.1 Un) If the problem persists, replace the motor mechanism release

Nuisance tripping of the device with activation of the reset button sgnalling a fault trip

b Reset button not pushed in completely b Push the rest button in completely

Impossible to insert the crank in connected, test ordisconnected position

b A padlock or keylock is present on the chassis or a door interlock is present

b Disable the locking function

Impossible to turn the crank b The reset button has not been pressed b Press the reset button

Device cannot be removed from chassis b Device not in disconnected position b Turn the crank until the device is in disconnected position and the reset button is out

b The rails are not completely out b Pull the rails all the way out

Device cannot be connected (racked in) b Chassis/device mismatch protection b Check that the chassis corresponds with the device

b The safety shutters are locked b Remove the lock(s)

b The disconnecting contact clusters are incorrectly positioned

b Reposition the clusters

b Chassis locked in disconnected position b Disable the chassis locking function

b The reset button has not been pressed, preventing rotation of the crank

b Press the reset button

b The device has not been sufficiently inserted in the chassis

b Insert the device completely so that it is engaged in the racking mechanism

Device cannot be locked in disconnected position (optional)



Device cannot be locked in connected, test, or disconnected position

b Check that locking in any position is enabled b Contact a Schneider Electric service centre



Operating the Compact NS Troubleshooting and solutionsElectrically operated Compact NS

58 51201640AA - 10/2017

Notes

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Notes

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Notes

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As standards, specifications and designs change from time to time, please ask for confirmation of the information given in this publication.

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